[Boatanchors] AM Amplifier

[Dennis DuVall]

Yes, everybody knows that but continuing on:  At 1600 watts peak out (4 X 400 W.carrier) and at a class B efficiency of 50% my 3-1000z is 
dissipating 800 watts on voice peaks with a 100% modulated A M driving signal, well within the tube’s ratings.  

That’s all I said.

DD W7QHO

> On Jul 7, 2018, at 6:19 PM, D C _Mac_ Macdonald <k2gkk at hotmail.com> wrote:
> 
> Theoretical Peak Envelope Power for a clean, 100% modulated AM signal is FOUR times the carrier power.
>  
> 73 de Mac, K2GKK/5​
> (Since 30 Nov '53)​
> Oklahoma City, OK​
> USAF Retired 61-81​
> FAA Retired 94-10
> 
> From: boatanchors-bounces at mailman.qth.net <boatanchors-bounces at mailman.qth.net> on behalf of Dennis DuVall <duvallddennis at gmail.com>
> Sent: Saturday, July 7, 2018 18:47
> To: Dale Smith
> Cc: BOATANCHORS2 LIST
> Subject: Re: [Boatanchors] AM Amplifier
>  
> 
> > On Jul 7, 2018, at 3:54 PM, Dale Smith <ka5who at gmail.com> wrote:
> > 
> > Lets see 450 watts times 4 =1600 watts,what is wrong with this picture.
> 
> 
> OK, just what IS wrong with this picture?  I run 400 watts AM carrier regularly with my military T-368.
> With the linear’s I do the same.  The amplifiers are running class B at an efficiency of 50% and thus dissipating
> 400 watts during carrier only and 800 watts on voice peaks both which values are well within he ratings of 
> a 3-1000Z.  Also please note that in my home-brew unit I’m still running the same tube I originally installed 
> almost 30 years ago.
> 
> Dennis DuVall   W7QHO  --   ex DA1IN, G5BSW, WA3YXN
> Glendale,CA